explain_irs_reject_code — 990.tax nonprofit lookup MCP Tool
explain_irs_reject_code
(explain irs reject code) is one of 8 tools on the
990.tax nonprofit lookup
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call explain_irs_reject_code from your client
- Claude Code 990.tax nonprofit lookup explain_irs_reject_code run in your project directory
- Claude Desktop 990.tax nonprofit lookup explain_irs_reject_code ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor 990.tax nonprofit lookup explain_irs_reject_code ~/.cursor/mcp.json
- VS Code 990.tax nonprofit lookup explain_irs_reject_code .vscode/mcp.json
- Zed 990.tax nonprofit lookup explain_irs_reject_code ~/.config/zed/settings.json
- Windsurf 990.tax nonprofit lookup explain_irs_reject_code ~/.codeium/windsurf/mcp_config.json
- Cline 990.tax nonprofit lookup explain_irs_reject_code ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI 990.tax nonprofit lookup explain_irs_reject_code ~/.gemini/settings.json
- Grok 990.tax nonprofit lookup explain_irs_reject_code .mcp.json (in your project root)
- ChatGPT 990.tax nonprofit lookup explain_irs_reject_code Settings → Connectors → Advanced → Developer mode
- Claude.ai 990.tax nonprofit lookup explain_irs_reject_code Settings → Connectors → Add custom connector
- LangChain 990.tax nonprofit lookup explain_irs_reject_code pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http nonprofit-lookup https://990.tax/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.